<!DOCTYPE HTML>
<html lang="en" >
    <!-- Start book 6节课入门Flask框架web开发 -->
    <head>
        <!-- head:start -->
        <meta charset="UTF-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <title>Hello World程序 | 6节课入门Flask框架web开发</title>
        <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
        <meta name="description" content="">
        <meta name="generator" content="GitBook 2.6.7">
        
        
        <meta name="HandheldFriendly" content="true"/>
        <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
        <meta name="apple-mobile-web-app-capable" content="yes">
        <meta name="apple-mobile-web-app-status-bar-style" content="black">
        <link rel="apple-touch-icon-precomposed" sizes="152x152" href="../gitbook/images/apple-touch-icon-precomposed-152.png">
        <link rel="shortcut icon" href="../gitbook/images/favicon.ico" type="image/x-icon">
        
    <link rel="stylesheet" href="../gitbook/style.css">
    
        
        <link rel="stylesheet" href="../gitbook/plugins/gitbook-plugin-toggle-chapters/toggle.css">
        
    
        
        <link rel="stylesheet" href="../gitbook/plugins/gitbook-plugin-splitter/splitter.css">
        
    
        
        <link rel="stylesheet" href="../gitbook/plugins/gitbook-plugin-highlight/website.css">
        
    
        
        <link rel="stylesheet" href="../gitbook/plugins/gitbook-plugin-search/search.css">
        
    
        
        <link rel="stylesheet" href="../gitbook/plugins/gitbook-plugin-fontsettings/website.css">
        
    
    

        
    
    
    <link rel="next" href="../chapter1/lu-you-de-ge-zhong-ding-yi-fang-shi.html" />
    
    
    <link rel="prev" href="../chapter1/requirements-wen-jian.html" />
    

        <!-- head:end -->
    </head>
    <body>
        <!-- body:start -->
        
    <div class="book"
        data-level="1.5"
        data-chapter-title="Hello World程序"
        data-filepath="chapter1/hello-worldcheng-xu.md"
        data-basepath=".."
        data-revision="Sun Jan 28 2018 01:59:46 GMT+0800 (CST)"
        data-innerlanguage="">
    

<div class="book-summary">
    <nav role="navigation">
        <ul class="summary">
            
            
            
            

            

            
    
        <li class="chapter " data-level="0" data-path="index.html">
            
                
                    <a href="../index.html">
                
                        <i class="fa fa-check"></i>
                        
                        Flask快速入门课程
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="1" data-path="chapter1.html">
            
                
                    <a href="../chapter1.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.</b>
                        
                        Flask基础
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="1.1" data-path="chapter1/flaskjian-jie.html">
            
                
                    <a href="../chapter1/flaskjian-jie.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.1.</b>
                        
                        为什么要使用WEB框架
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="1.2" data-path="chapter1/flaskyu-django-dui-bi.html">
            
                
                    <a href="../chapter1/flaskyu-django-dui-bi.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.2.</b>
                        
                        Flask简介
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="1.3" data-path="chapter1/flask-an-zhuang-huan-jing.html">
            
                
                    <a href="../chapter1/flask-an-zhuang-huan-jing.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.3.</b>
                        
                        Flask 安装环境
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="1.4" data-path="chapter1/requirements-wen-jian.html">
            
                
                    <a href="../chapter1/requirements-wen-jian.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.4.</b>
                        
                        requirements 文件
                    </a>
            
            
        </li>
    
        <li class="chapter active" data-level="1.5" data-path="chapter1/hello-worldcheng-xu.html">
            
                
                    <a href="../chapter1/hello-worldcheng-xu.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.5.</b>
                        
                        Hello World程序
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="1.6" data-path="chapter1/lu-you-de-ge-zhong-ding-yi-fang-shi.html">
            
                
                    <a href="../chapter1/lu-you-de-ge-zhong-ding-yi-fang-shi.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>1.6.</b>
                        
                        路由定义的基本方式
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="2" data-path="chapter2.html">
            
                
                    <a href="../chapter2.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>2.</b>
                        
                        模板
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="2.1" data-path="chapter2/jinja2mo-ban-yin-qing.html">
            
                
                    <a href="../chapter2/jinja2mo-ban-yin-qing.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>2.1.</b>
                        
                        Jinja2模板引擎
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="2.2" data-path="chapter2/guo-lv-qi.html">
            
                
                    <a href="../chapter2/guo-lv-qi.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>2.2.</b>
                        
                        过滤器
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="2.3" data-path="chapter2/hong.html">
            
                
                    <a href="../chapter2/hong.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>2.3.</b>
                        
                        Flask-WTF表单
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="3" data-path="chapter3.html">
            
                
                    <a href="../chapter3.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.</b>
                        
                        数据库
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="3.1" data-path="chapter3/shu-ju-ku-de-she-zhi.html">
            
                
                    <a href="../chapter3/shu-ju-ku-de-she-zhi.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.1.</b>
                        
                        Flask中使用数据库
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.2" data-path="chapter3/shu-ju-ku-ji-ben-cao-zuo.html">
            
                
                    <a href="../chapter3/shu-ju-ku-ji-ben-cao-zuo.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.2.</b>
                        
                        数据库基本操作
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.3" data-path="chapter3/zong-he-an-4f8b-tu-shu-guan-li.html">
            
                
                    <a href="../chapter3/zong-he-an-4f8b-tu-shu-guan-li.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.3.</b>
                        
                        综合案例-图书管理
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="3.3.1" data-path="chapter3/zong-he-an-4f8b-tu-shu-guan-li/ding-yi-mo-xing.html">
            
                
                    <a href="../chapter3/zong-he-an-4f8b-tu-shu-guan-li/ding-yi-mo-xing.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.3.1.</b>
                        
                        定义模型&amp;创建表&amp;数据添加
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.3.2" data-path="chapter3/zong-he-an-4f8b-tu-shu-guan-li/shu-ju-xian-793a26-biao-dan-tian-jia.html">
            
                
                    <a href="../chapter3/zong-he-an-4f8b-tu-shu-guan-li/shu-ju-xian-793a26-biao-dan-tian-jia.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.3.2.</b>
                        
                        数据显示&amp;表单添加
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.3.3" data-path="chapter3/zong-he-an-4f8b-tu-shu-guan-li/biao-dan-yan-zheng.html">
            
                
                    <a href="../chapter3/zong-he-an-4f8b-tu-shu-guan-li/biao-dan-yan-zheng.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.3.3.</b>
                        
                        添加数据的表单验证
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.3.4" data-path="chapter3/zong-he-an-4f8b-tu-shu-guan-li/shan-chu-shu-ju.html">
            
                
                    <a href="../chapter3/zong-he-an-4f8b-tu-shu-guan-li/shan-chu-shu-ju.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.3.4.</b>
                        
                        删除数据
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    

            </ul>
            
        </li>
    


            
            <li class="divider"></li>
            <li>
                <a href="https://www.gitbook.com" target="blank" class="gitbook-link">
                    Published with GitBook
                </a>
            </li>
            
        </ul>
    </nav>
</div>

    <div class="book-body">
        <div class="body-inner">
            <div class="book-header" role="navigation">
    <!-- Actions Left -->
    

    <!-- Title -->
    <h1>
        <i class="fa fa-circle-o-notch fa-spin"></i>
        <a href="../" >6节课入门Flask框架web开发</a>
    </h1>
</div>

            <div class="page-wrapper" tabindex="-1" role="main">
                <div class="page-inner">
                
                
                    <section class="normal" id="section-">
                    
                        <h1 id="&#x4ECE;-hello-world-&#x5F00;&#x59CB;">&#x4ECE; Hello World &#x5F00;&#x59CB;</h1>
<h2 id="flask&#x7A0B;&#x5E8F;&#x8FD0;&#x884C;&#x8FC7;&#x7A0B;">Flask&#x7A0B;&#x5E8F;&#x8FD0;&#x884C;&#x8FC7;&#x7A0B;</h2>
<ol>
<li>&#x5F53;&#x5BA2;&#x6237;&#x7AEF;&#x60F3;&#x8981;&#x83B7;&#x53D6;&#x8D44;&#x6E90;&#x65F6;&#xFF0C;&#x4E00;&#x822C;&#x4F1A;&#x901A;&#x8FC7;&#x6D4F;&#x89C8;&#x5668;&#x53D1;&#x8D77;HTTP&#x8BF7;&#x6C42;&#x3002;</li>
<li>&#x6B64;&#x65F6;&#xFF0C;Web&#x670D;&#x52A1;&#x5668;&#x4F1A;&#x628A;&#x6765;&#x81EA;&#x5BA2;&#x6237;&#x7AEF;&#x7684;&#x6240;&#x6709;&#x8BF7;&#x6C42;&#x90FD;&#x4EA4;&#x7ED9;Flask&#x7A0B;&#x5E8F;&#x5B9E;&#x4F8B;</li>
<li>&#x7A0B;&#x5E8F;&#x5B9E;&#x4F8B;&#x4F7F;&#x7528;Werkzeug&#x6765;&#x505A;&#x8DEF;&#x7531;&#x5206;&#x53D1;&#xFF08;URL&#x8BF7;&#x6C42;&#x548C;&#x89C6;&#x56FE;&#x51FD;&#x6570;&#x4E4B;&#x95F4;&#x7684;&#x5BF9;&#x5E94;&#x5173;&#x7CFB;&#xFF09;&#x3002;</li>
<li>&#x6839;&#x636E;&#x6BCF;&#x4E2A;URL&#x8BF7;&#x6C42;&#xFF0C;&#x627E;&#x5230;&#x5177;&#x4F53;&#x7684;&#x89C6;&#x56FE;&#x51FD;&#x6570;&#x5E76;&#x8FDB;&#x884C;&#x8C03;&#x7528;&#x3002;<ul>
<li>&#x5728;Flask&#x7A0B;&#x5E8F;&#x4E2D;&#xFF0C;&#x8DEF;&#x7531;&#x7684;&#x5B9E;&#x73B0;&#x4E00;&#x822C;&#x662F;&#x901A;&#x8FC7;&#x7A0B;&#x5E8F;&#x5B9E;&#x4F8B;&#x7684;&#x88C5;&#x9970;&#x5668;&#x5B9E;&#x73B0;&#x3002;</li>
</ul>
</li>
<li>Flask&#x8C03;&#x7528;&#x89C6;&#x56FE;&#x51FD;&#x6570;&#x540E;&#xFF0C;&#x53EF;&#x4EE5;&#x8FD4;&#x56DE;&#x4E24;&#x79CD;&#x5185;&#x5BB9;&#xFF1A;<ul>
<li>&#x5B57;&#x7B26;&#x4E32;&#x5185;&#x5BB9;&#xFF1A;&#x5C06;&#x89C6;&#x56FE;&#x51FD;&#x6570;&#x7684;&#x8FD4;&#x56DE;&#x503C;&#x4F5C;&#x4E3A;&#x54CD;&#x5E94;&#x7684;&#x5185;&#x5BB9;&#xFF0C;&#x8FD4;&#x56DE;&#x7ED9;&#x5BA2;&#x6237;&#x7AEF;(&#x6D4F;&#x89C8;&#x5668;)</li>
<li>HTML&#x6A21;&#x7248;&#x5185;&#x5BB9;&#xFF1A;&#x83B7;&#x53D6;&#x5230;&#x6570;&#x636E;&#x540E;&#xFF0C;&#x628A;&#x6570;&#x636E;&#x4F20;&#x5165;HTML&#x6A21;&#x677F;&#x6587;&#x4EF6;&#x4E2D;&#xFF0C;&#x6A21;&#x677F;&#x5F15;&#x64CE;&#x8D1F;&#x8D23;&#x6E32;&#x67D3;HTTP&#x54CD;&#x5E94;&#x6570;&#x636E;&#xFF0C;&#x7136;&#x540E;&#x8FD4;&#x56DE;&#x54CD;&#x5E94;&#x6570;&#x636E;&#x7ED9;&#x5BA2;&#x6237;&#x7AEF;(&#x6D4F;&#x89C8;&#x5668;)</li>
</ul>
</li>
</ol>
<h2 id="&#x793A;&#x4F8B;&#xFF1A;">&#x793A;&#x4F8B;&#xFF1A;</h2>
<ul>
<li>&#x65B0;&#x5EFA;Flask&#x9879;&#x76EE;</li>
<li>&#x5BFC;&#x5165;Flask&#x7C7B;</li>
</ul>
<pre><code class="lang-python"><span class="hljs-keyword">from</span> flask <span class="hljs-keyword">import</span> Flask
</code></pre>
<ul>
<li>Flask&#x51FD;&#x6570;&#x63A5;&#x6536;&#x4E00;&#x4E2A;&#x53C2;&#x6570;<strong>name</strong>&#xFF0C;&#x5B83;&#x4F1A;&#x6307;&#x5411;&#x7A0B;&#x5E8F;&#x6240;&#x5728;&#x7684;&#x6A21;&#x5757;</li>
</ul>
<pre><code class="lang-python">app = Flask(__name__)
</code></pre>
<ul>
<li>&#x88C5;&#x9970;&#x5668;&#x7684;&#x4F5C;&#x7528;&#x662F;&#x5C06;&#x8DEF;&#x7531;&#x6620;&#x5C04;&#x5230;&#x89C6;&#x56FE;&#x51FD;&#x6570;index</li>
</ul>
<pre><code class="lang-python"><span class="hljs-decorator">@app.route(&apos;/&apos;)</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">index</span><span class="hljs-params">()</span>:</span>
    <span class="hljs-keyword">return</span> <span class="hljs-string">&apos;Hello World&apos;</span>
</code></pre>
<ul>
<li>Flask&#x5E94;&#x7528;&#x7A0B;&#x5E8F;&#x5B9E;&#x4F8B;&#x7684;run&#x65B9;&#x6CD5;&#x542F;&#x52A8;WEB&#x670D;&#x52A1;&#x5668;</li>
</ul>
<pre><code class="lang-python"><span class="hljs-keyword">if</span> __name__ == <span class="hljs-string">&apos;__main__&apos;</span>:
    app.run()
</code></pre>

                    
                    </section>
                
                
                </div>
            </div>
        </div>

        
        <a href="../chapter1/requirements-wen-jian.html" class="navigation navigation-prev " aria-label="Previous page: requirements 文件"><i class="fa fa-angle-left"></i></a>
        
        
        <a href="../chapter1/lu-you-de-ge-zhong-ding-yi-fang-shi.html" class="navigation navigation-next " aria-label="Next page: 路由定义的基本方式"><i class="fa fa-angle-right"></i></a>
        
    </div>
</div>

        
<script src="../gitbook/app.js"></script>

    
    <script src="../gitbook/plugins/gitbook-plugin-toggle-chapters/toggle.js"></script>
    

    
    <script src="../gitbook/plugins/gitbook-plugin-splitter/splitter.js"></script>
    

    
    <script src="../gitbook/plugins/gitbook-plugin-search/lunr.min.js"></script>
    

    
    <script src="../gitbook/plugins/gitbook-plugin-search/search.js"></script>
    

    
    <script src="../gitbook/plugins/gitbook-plugin-sharing/buttons.js"></script>
    

    
    <script src="../gitbook/plugins/gitbook-plugin-fontsettings/buttons.js"></script>
    

<script>
require(["gitbook"], function(gitbook) {
    var config = {"toggle-chapters":{},"splitter":{},"highlight":{},"search":{"maxIndexSize":1000000},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"fontsettings":{"theme":"white","family":"sans","size":2}};
    gitbook.start(config);
});
</script>

        <!-- body:end -->
    </body>
    <!-- End of book 6节课入门Flask框架web开发 -->
</html>
